./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8b874c7ae88f1b18d69b67ffc194fd453f07c437ad434b3d3b7312d25946d05f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:55:40,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:55:40,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:55:40,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:55:40,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:55:40,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:55:40,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:55:40,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:55:40,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:55:40,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:55:40,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:55:40,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:55:40,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:55:40,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:55:40,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:55:40,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:55:40,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:55:40,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:55:40,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:55:40,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:55:40,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:55:40,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:55:40,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:55:40,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:55:40,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:55:40,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:55:40,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:55:40,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:55:40,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:55:40,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:55:40,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:55:40,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:55:40,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:55:40,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:55:40,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:55:40,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:55:40,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:55:40,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:55:40,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:55:40,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:55:40,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:55:40,749 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:55:40,768 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:55:40,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:55:40,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:55:40,769 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:55:40,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:55:40,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:55:40,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:55:40,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:55:40,770 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:55:40,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:55:40,770 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:55:40,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:55:40,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:55:40,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:55:40,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:55:40,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:55:40,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:55:40,771 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:55:40,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:55:40,771 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:55:40,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:55:40,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:55:40,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:55:40,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:55:40,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:55:40,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:55:40,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:55:40,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:55:40,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:55:40,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:55:40,772 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:55:40,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:55:40,772 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:55:40,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:55:40,772 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:55:40,773 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b874c7ae88f1b18d69b67ffc194fd453f07c437ad434b3d3b7312d25946d05f [2022-12-13 14:55:40,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:55:40,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:55:40,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:55:40,956 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:55:40,957 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:55:40,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/email_spec11_product32.cil.c [2022-12-13 14:55:43,529 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:55:43,761 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:55:43,761 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/sv-benchmarks/c/product-lines/email_spec11_product32.cil.c [2022-12-13 14:55:43,775 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/data/f9de1f9e6/15962bd3d259465399193409129a2cea/FLAG714d6d123 [2022-12-13 14:55:43,785 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/data/f9de1f9e6/15962bd3d259465399193409129a2cea [2022-12-13 14:55:43,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:55:43,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:55:43,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:55:43,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:55:43,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:55:43,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:55:43" (1/1) ... [2022-12-13 14:55:43,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fae74a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:43, skipping insertion in model container [2022-12-13 14:55:43,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:55:43" (1/1) ... [2022-12-13 14:55:43,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:55:43,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:55:44,157 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,159 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,163 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,230 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/sv-benchmarks/c/product-lines/email_spec11_product32.cil.c[45976,45989] [2022-12-13 14:55:44,246 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,251 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,251 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,253 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,261 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,263 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:55:44,291 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:55:44,340 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,341 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,342 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,358 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/sv-benchmarks/c/product-lines/email_spec11_product32.cil.c[45976,45989] [2022-12-13 14:55:44,359 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,361 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,361 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,362 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,365 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,366 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:55:44,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:55:44,392 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:55:44,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:44 WrapperNode [2022-12-13 14:55:44,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:55:44,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:55:44,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:55:44,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:55:44,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:44" (1/1) ... [2022-12-13 14:55:44,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:44" (1/1) ... [2022-12-13 14:55:44,447 INFO L138 Inliner]: procedures = 134, calls = 236, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 981 [2022-12-13 14:55:44,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:55:44,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:55:44,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:55:44,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:55:44,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:44" (1/1) ... [2022-12-13 14:55:44,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:44" (1/1) ... [2022-12-13 14:55:44,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:44" (1/1) ... [2022-12-13 14:55:44,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:44" (1/1) ... [2022-12-13 14:55:44,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:44" (1/1) ... [2022-12-13 14:55:44,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:44" (1/1) ... [2022-12-13 14:55:44,481 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:44" (1/1) ... [2022-12-13 14:55:44,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:44" (1/1) ... [2022-12-13 14:55:44,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:55:44,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:55:44,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:55:44,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:55:44,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:44" (1/1) ... [2022-12-13 14:55:44,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:55:44,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:55:44,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:55:44,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:55:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-13 14:55:44,556 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-13 14:55:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-13 14:55:44,556 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-13 14:55:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-13 14:55:44,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-13 14:55:44,556 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-13 14:55:44,557 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-13 14:55:44,557 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-13 14:55:44,557 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-13 14:55:44,557 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-13 14:55:44,557 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-13 14:55:44,557 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-13 14:55:44,557 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-13 14:55:44,557 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-13 14:55:44,557 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-13 14:55:44,558 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-13 14:55:44,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-13 14:55:44,558 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-13 14:55:44,558 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-13 14:55:44,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-13 14:55:44,558 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-13 14:55:44,558 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-13 14:55:44,558 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-13 14:55:44,558 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-13 14:55:44,558 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-13 14:55:44,559 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-13 14:55:44,559 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-13 14:55:44,559 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-13 14:55:44,559 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-13 14:55:44,559 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-13 14:55:44,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:55:44,559 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-13 14:55:44,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-13 14:55:44,559 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-13 14:55:44,560 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-13 14:55:44,560 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-13 14:55:44,560 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-13 14:55:44,560 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-13 14:55:44,560 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-13 14:55:44,560 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-13 14:55:44,560 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-13 14:55:44,560 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-13 14:55:44,560 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-13 14:55:44,560 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-13 14:55:44,561 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-13 14:55:44,561 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-13 14:55:44,561 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-13 14:55:44,561 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-13 14:55:44,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-13 14:55:44,561 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-13 14:55:44,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-13 14:55:44,561 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-13 14:55:44,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-13 14:55:44,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:55:44,562 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-13 14:55:44,562 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-13 14:55:44,562 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-13 14:55:44,562 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-13 14:55:44,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:55:44,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:55:44,729 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:55:44,731 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:55:45,374 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:55:45,381 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:55:45,381 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 14:55:45,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:55:45 BoogieIcfgContainer [2022-12-13 14:55:45,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:55:45,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:55:45,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:55:45,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:55:45,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:55:43" (1/3) ... [2022-12-13 14:55:45,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25727654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:55:45, skipping insertion in model container [2022-12-13 14:55:45,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:55:44" (2/3) ... [2022-12-13 14:55:45,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25727654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:55:45, skipping insertion in model container [2022-12-13 14:55:45,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:55:45" (3/3) ... [2022-12-13 14:55:45,389 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product32.cil.c [2022-12-13 14:55:45,403 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:55:45,403 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 14:55:45,444 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:55:45,448 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@238390c8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:55:45,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 14:55:45,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 422 states, 328 states have (on average 1.5518292682926829) internal successors, (509), 333 states have internal predecessors, (509), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-13 14:55:45,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-12-13 14:55:45,468 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:55:45,469 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:55:45,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:55:45,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:55:45,473 INFO L85 PathProgramCache]: Analyzing trace with hash -956142566, now seen corresponding path program 1 times [2022-12-13 14:55:45,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:55:45,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739000333] [2022-12-13 14:55:45,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:45,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:55:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:55:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:55:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:55:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 14:55:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 14:55:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 14:55:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 14:55:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 14:55:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 14:55:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 14:55:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 14:55:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 14:55:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 14:55:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 14:55:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 14:55:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 14:55:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:45,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 14:55:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,007 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-13 14:55:46,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:55:46,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739000333] [2022-12-13 14:55:46,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739000333] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:55:46,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580629354] [2022-12-13 14:55:46,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:46,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:55:46,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:55:46,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:55:46,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 14:55:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1307 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 14:55:46,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:55:46,297 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 14:55:46,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:55:46,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580629354] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:55:46,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:55:46,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-12-13 14:55:46,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222725019] [2022-12-13 14:55:46,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:55:46,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:55:46,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:55:46,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:55:46,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:55:46,333 INFO L87 Difference]: Start difference. First operand has 422 states, 328 states have (on average 1.5518292682926829) internal successors, (509), 333 states have internal predecessors, (509), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:55:46,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:55:46,390 INFO L93 Difference]: Finished difference Result 651 states and 964 transitions. [2022-12-13 14:55:46,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:55:46,392 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2022-12-13 14:55:46,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:55:46,402 INFO L225 Difference]: With dead ends: 651 [2022-12-13 14:55:46,402 INFO L226 Difference]: Without dead ends: 415 [2022-12-13 14:55:46,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:55:46,408 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:55:46,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:55:46,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-12-13 14:55:46,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2022-12-13 14:55:46,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 322 states have (on average 1.546583850931677) internal successors, (498), 326 states have internal predecessors, (498), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-13 14:55:46,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 625 transitions. [2022-12-13 14:55:46,470 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 625 transitions. Word has length 148 [2022-12-13 14:55:46,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:55:46,472 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 625 transitions. [2022-12-13 14:55:46,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:55:46,472 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 625 transitions. [2022-12-13 14:55:46,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-12-13 14:55:46,480 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:55:46,480 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:55:46,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 14:55:46,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 14:55:46,681 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:55:46,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:55:46,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1767755696, now seen corresponding path program 1 times [2022-12-13 14:55:46,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:55:46,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168743448] [2022-12-13 14:55:46,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:46,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:55:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:55:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:55:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:55:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 14:55:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 14:55:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 14:55:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 14:55:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 14:55:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 14:55:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 14:55:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 14:55:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 14:55:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 14:55:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 14:55:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 14:55:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 14:55:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 14:55:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:46,962 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-13 14:55:46,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:55:46,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168743448] [2022-12-13 14:55:46,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168743448] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:55:46,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723717261] [2022-12-13 14:55:46,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:46,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:55:46,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:55:46,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:55:46,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 14:55:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:55:47,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:55:47,251 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 14:55:47,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:55:47,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723717261] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:55:47,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:55:47,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 14:55:47,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705121984] [2022-12-13 14:55:47,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:55:47,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:55:47,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:55:47,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:55:47,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:55:47,254 INFO L87 Difference]: Start difference. First operand 415 states and 625 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:55:47,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:55:47,289 INFO L93 Difference]: Finished difference Result 641 states and 942 transitions. [2022-12-13 14:55:47,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:55:47,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2022-12-13 14:55:47,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:55:47,292 INFO L225 Difference]: With dead ends: 641 [2022-12-13 14:55:47,292 INFO L226 Difference]: Without dead ends: 418 [2022-12-13 14:55:47,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:55:47,294 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 1 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:55:47,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1244 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:55:47,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-12-13 14:55:47,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 417. [2022-12-13 14:55:47,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 324 states have (on average 1.5432098765432098) internal successors, (500), 328 states have internal predecessors, (500), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-13 14:55:47,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 627 transitions. [2022-12-13 14:55:47,315 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 627 transitions. Word has length 149 [2022-12-13 14:55:47,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:55:47,315 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 627 transitions. [2022-12-13 14:55:47,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:55:47,316 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 627 transitions. [2022-12-13 14:55:47,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-12-13 14:55:47,318 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:55:47,318 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:55:47,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 14:55:47,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:55:47,519 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:55:47,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:55:47,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1166043323, now seen corresponding path program 1 times [2022-12-13 14:55:47,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:55:47,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99052687] [2022-12-13 14:55:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:47,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:55:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:55:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:55:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:55:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 14:55:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 14:55:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 14:55:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 14:55:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 14:55:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 14:55:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 14:55:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 14:55:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 14:55:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 14:55:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 14:55:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 14:55:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 14:55:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 14:55:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:47,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:47,781 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 14:55:47,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:55:47,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99052687] [2022-12-13 14:55:47,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99052687] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:55:47,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634670435] [2022-12-13 14:55:47,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:47,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:55:47,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:55:47,783 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:55:47,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 14:55:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 1335 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:55:48,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:55:48,040 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 14:55:48,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:55:48,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634670435] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:55:48,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:55:48,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 14:55:48,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209798558] [2022-12-13 14:55:48,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:55:48,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:55:48,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:55:48,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:55:48,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:55:48,042 INFO L87 Difference]: Start difference. First operand 417 states and 627 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:55:48,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:55:48,079 INFO L93 Difference]: Finished difference Result 882 states and 1346 transitions. [2022-12-13 14:55:48,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:55:48,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2022-12-13 14:55:48,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:55:48,083 INFO L225 Difference]: With dead ends: 882 [2022-12-13 14:55:48,083 INFO L226 Difference]: Without dead ends: 492 [2022-12-13 14:55:48,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:55:48,086 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 134 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:55:48,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1225 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:55:48,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-12-13 14:55:48,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 484. [2022-12-13 14:55:48,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 377 states have (on average 1.5623342175066313) internal successors, (589), 381 states have internal predecessors, (589), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2022-12-13 14:55:48,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 744 transitions. [2022-12-13 14:55:48,115 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 744 transitions. Word has length 158 [2022-12-13 14:55:48,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:55:48,115 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 744 transitions. [2022-12-13 14:55:48,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:55:48,116 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 744 transitions. [2022-12-13 14:55:48,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-12-13 14:55:48,120 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:55:48,120 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:55:48,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 14:55:48,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:55:48,322 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:55:48,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:55:48,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1872173600, now seen corresponding path program 1 times [2022-12-13 14:55:48,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:55:48,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558242775] [2022-12-13 14:55:48,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:48,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:55:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:55:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:55:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:55:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 14:55:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 14:55:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 14:55:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 14:55:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 14:55:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 14:55:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 14:55:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 14:55:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 14:55:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 14:55:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 14:55:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 14:55:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 14:55:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 14:55:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 14:55:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 14:55:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-12-13 14:55:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 14:55:48,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:55:48,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558242775] [2022-12-13 14:55:48,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558242775] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:55:48,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807207791] [2022-12-13 14:55:48,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:48,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:55:48,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:55:48,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:55:48,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 14:55:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:48,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 1423 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 14:55:48,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:55:48,990 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-12-13 14:55:48,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:55:48,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807207791] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:55:48,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:55:48,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-12-13 14:55:48,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421245247] [2022-12-13 14:55:48,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:55:48,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:55:48,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:55:48,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:55:48,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:55:48,993 INFO L87 Difference]: Start difference. First operand 484 states and 744 transitions. Second operand has 5 states, 4 states have (on average 26.25) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-13 14:55:49,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:55:49,061 INFO L93 Difference]: Finished difference Result 959 states and 1478 transitions. [2022-12-13 14:55:49,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:55:49,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 26.25) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 178 [2022-12-13 14:55:49,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:55:49,064 INFO L225 Difference]: With dead ends: 959 [2022-12-13 14:55:49,064 INFO L226 Difference]: Without dead ends: 486 [2022-12-13 14:55:49,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:55:49,066 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 152 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2289 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:55:49,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2289 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:55:49,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-12-13 14:55:49,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2022-12-13 14:55:49,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 378 states have (on average 1.560846560846561) internal successors, (590), 383 states have internal predecessors, (590), 78 states have call successors, (78), 28 states have call predecessors, (78), 29 states have return successors, (79), 76 states have call predecessors, (79), 77 states have call successors, (79) [2022-12-13 14:55:49,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 747 transitions. [2022-12-13 14:55:49,081 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 747 transitions. Word has length 178 [2022-12-13 14:55:49,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:55:49,082 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 747 transitions. [2022-12-13 14:55:49,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 26.25) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-13 14:55:49,082 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 747 transitions. [2022-12-13 14:55:49,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-12-13 14:55:49,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:55:49,084 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:55:49,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 14:55:49,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:55:49,286 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:55:49,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:55:49,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1808606190, now seen corresponding path program 1 times [2022-12-13 14:55:49,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:55:49,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266304861] [2022-12-13 14:55:49,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:49,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:55:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:55:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:55:49,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:55:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:55:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 14:55:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 14:55:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 14:55:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 14:55:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 14:55:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 14:55:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 14:55:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 14:55:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 14:55:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 14:55:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 14:55:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 14:55:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 14:55:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 14:55:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 14:55:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-12-13 14:55:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 14:55:49,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:55:49,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266304861] [2022-12-13 14:55:49,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266304861] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:55:49,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907905825] [2022-12-13 14:55:49,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:49,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:55:49,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:55:49,608 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:55:49,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 14:55:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:49,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:55:49,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:55:49,884 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-12-13 14:55:49,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:55:49,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907905825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:55:49,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:55:49,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 14:55:49,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566055807] [2022-12-13 14:55:49,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:55:49,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:55:49,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:55:49,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:55:49,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:55:49,886 INFO L87 Difference]: Start difference. First operand 486 states and 747 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-13 14:55:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:55:49,948 INFO L93 Difference]: Finished difference Result 961 states and 1483 transitions. [2022-12-13 14:55:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:55:49,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 179 [2022-12-13 14:55:49,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:55:49,952 INFO L225 Difference]: With dead ends: 961 [2022-12-13 14:55:49,952 INFO L226 Difference]: Without dead ends: 488 [2022-12-13 14:55:49,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-12-13 14:55:49,955 INFO L413 NwaCegarLoop]: 614 mSDtfsCounter, 151 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:55:49,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2278 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:55:49,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-12-13 14:55:49,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2022-12-13 14:55:49,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 379 states have (on average 1.5593667546174141) internal successors, (591), 385 states have internal predecessors, (591), 78 states have call successors, (78), 28 states have call predecessors, (78), 30 states have return successors, (84), 76 states have call predecessors, (84), 77 states have call successors, (84) [2022-12-13 14:55:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 753 transitions. [2022-12-13 14:55:49,979 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 753 transitions. Word has length 179 [2022-12-13 14:55:49,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:55:49,979 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 753 transitions. [2022-12-13 14:55:49,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-13 14:55:49,980 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 753 transitions. [2022-12-13 14:55:49,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-13 14:55:49,982 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:55:49,982 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:55:49,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 14:55:50,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:55:50,183 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:55:50,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:55:50,183 INFO L85 PathProgramCache]: Analyzing trace with hash 972155000, now seen corresponding path program 1 times [2022-12-13 14:55:50,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:55:50,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116497399] [2022-12-13 14:55:50,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:50,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:55:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:55:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:55:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:55:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:55:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:55:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 14:55:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 14:55:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 14:55:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 14:55:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 14:55:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 14:55:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 14:55:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 14:55:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 14:55:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 14:55:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 14:55:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 14:55:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:50,350 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 14:55:50,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:55:50,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116497399] [2022-12-13 14:55:50,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116497399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:55:50,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:55:50,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 14:55:50,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496188765] [2022-12-13 14:55:50,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:55:50,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 14:55:50,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:55:50,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 14:55:50,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:55:50,352 INFO L87 Difference]: Start difference. First operand 488 states and 753 transitions. Second operand has 9 states, 8 states have (on average 12.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 14:55:52,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:55:52,124 INFO L93 Difference]: Finished difference Result 1084 states and 1694 transitions. [2022-12-13 14:55:52,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:55:52,124 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 161 [2022-12-13 14:55:52,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:55:52,130 INFO L225 Difference]: With dead ends: 1084 [2022-12-13 14:55:52,130 INFO L226 Difference]: Without dead ends: 619 [2022-12-13 14:55:52,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 14:55:52,132 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1624 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2641 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 3203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 2641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:55:52,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 1191 Invalid, 3203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 2641 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 14:55:52,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-12-13 14:55:52,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 488. [2022-12-13 14:55:52,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 379 states have (on average 1.5593667546174141) internal successors, (591), 385 states have internal predecessors, (591), 78 states have call successors, (78), 28 states have call predecessors, (78), 30 states have return successors, (83), 76 states have call predecessors, (83), 77 states have call successors, (83) [2022-12-13 14:55:52,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 752 transitions. [2022-12-13 14:55:52,161 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 752 transitions. Word has length 161 [2022-12-13 14:55:52,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:55:52,162 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 752 transitions. [2022-12-13 14:55:52,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 14:55:52,162 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 752 transitions. [2022-12-13 14:55:52,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-12-13 14:55:52,164 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:55:52,164 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:55:52,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:55:52,164 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:55:52,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:55:52,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1397094364, now seen corresponding path program 2 times [2022-12-13 14:55:52,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:55:52,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803625673] [2022-12-13 14:55:52,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:52,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:55:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:55:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:55:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:55:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:55:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:55:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 14:55:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 14:55:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 14:55:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 14:55:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 14:55:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 14:55:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 14:55:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 14:55:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 14:55:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 14:55:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 14:55:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 14:55:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:52,344 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 14:55:52,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:55:52,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803625673] [2022-12-13 14:55:52,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803625673] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:55:52,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:55:52,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 14:55:52,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984480042] [2022-12-13 14:55:52,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:55:52,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 14:55:52,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:55:52,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 14:55:52,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:55:52,346 INFO L87 Difference]: Start difference. First operand 488 states and 752 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 14:55:53,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:55:53,879 INFO L93 Difference]: Finished difference Result 1086 states and 1697 transitions. [2022-12-13 14:55:53,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:55:53,879 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 162 [2022-12-13 14:55:53,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:55:53,883 INFO L225 Difference]: With dead ends: 1086 [2022-12-13 14:55:53,883 INFO L226 Difference]: Without dead ends: 621 [2022-12-13 14:55:53,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 14:55:53,886 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1562 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2735 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 3282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 2735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:55:53,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 1191 Invalid, 3282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 2735 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 14:55:53,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-12-13 14:55:53,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 490. [2022-12-13 14:55:53,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 380 states have (on average 1.5578947368421052) internal successors, (592), 387 states have internal predecessors, (592), 78 states have call successors, (78), 28 states have call predecessors, (78), 31 states have return successors, (85), 76 states have call predecessors, (85), 77 states have call successors, (85) [2022-12-13 14:55:53,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 755 transitions. [2022-12-13 14:55:53,934 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 755 transitions. Word has length 162 [2022-12-13 14:55:53,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:55:53,935 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 755 transitions. [2022-12-13 14:55:53,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 14:55:53,935 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 755 transitions. [2022-12-13 14:55:53,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-12-13 14:55:53,938 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:55:53,938 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:55:53,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:55:53,938 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:55:53,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:55:53,939 INFO L85 PathProgramCache]: Analyzing trace with hash -768160963, now seen corresponding path program 1 times [2022-12-13 14:55:53,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:55:53,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407785023] [2022-12-13 14:55:53,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:53,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:55:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:55:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:55:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:55:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:55:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:55:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:55:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 14:55:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 14:55:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 14:55:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 14:55:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 14:55:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 14:55:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 14:55:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 14:55:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 14:55:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 14:55:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 14:55:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:54,116 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 14:55:54,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:55:54,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407785023] [2022-12-13 14:55:54,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407785023] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:55:54,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:55:54,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 14:55:54,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871516891] [2022-12-13 14:55:54,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:55:54,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:55:54,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:55:54,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:55:54,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:55:54,118 INFO L87 Difference]: Start difference. First operand 490 states and 755 transitions. Second operand has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 14:55:56,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:55:56,156 INFO L93 Difference]: Finished difference Result 1084 states and 1692 transitions. [2022-12-13 14:55:56,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 14:55:56,156 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 163 [2022-12-13 14:55:56,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:55:56,158 INFO L225 Difference]: With dead ends: 1084 [2022-12-13 14:55:56,158 INFO L226 Difference]: Without dead ends: 621 [2022-12-13 14:55:56,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-12-13 14:55:56,160 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1733 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4495 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 5097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 4495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:55:56,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 1555 Invalid, 5097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 4495 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 14:55:56,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-12-13 14:55:56,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 490. [2022-12-13 14:55:56,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 380 states have (on average 1.5578947368421052) internal successors, (592), 387 states have internal predecessors, (592), 78 states have call successors, (78), 28 states have call predecessors, (78), 31 states have return successors, (84), 76 states have call predecessors, (84), 77 states have call successors, (84) [2022-12-13 14:55:56,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 754 transitions. [2022-12-13 14:55:56,194 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 754 transitions. Word has length 163 [2022-12-13 14:55:56,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:55:56,194 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 754 transitions. [2022-12-13 14:55:56,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 14:55:56,194 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 754 transitions. [2022-12-13 14:55:56,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-12-13 14:55:56,196 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:55:56,196 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:55:56,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 14:55:56,197 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:55:56,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:55:56,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1517288912, now seen corresponding path program 2 times [2022-12-13 14:55:56,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:55:56,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047350894] [2022-12-13 14:55:56,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:56,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:55:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:55:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:55:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:55:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:55:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:55:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:55:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 14:55:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 14:55:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:55:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 14:55:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 14:55:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 14:55:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 14:55:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 14:55:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 14:55:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 14:55:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 14:55:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:56,375 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 14:55:56,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:55:56,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047350894] [2022-12-13 14:55:56,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047350894] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:55:56,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:55:56,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 14:55:56,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411175232] [2022-12-13 14:55:56,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:55:56,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:55:56,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:55:56,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:55:56,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:55:56,377 INFO L87 Difference]: Start difference. First operand 490 states and 754 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 14:55:58,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:55:58,494 INFO L93 Difference]: Finished difference Result 1086 states and 1698 transitions. [2022-12-13 14:55:58,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 14:55:58,495 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 164 [2022-12-13 14:55:58,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:55:58,497 INFO L225 Difference]: With dead ends: 1086 [2022-12-13 14:55:58,497 INFO L226 Difference]: Without dead ends: 623 [2022-12-13 14:55:58,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-12-13 14:55:58,498 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1746 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4492 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 5095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 4492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:55:58,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 1556 Invalid, 5095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [603 Valid, 4492 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 14:55:58,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2022-12-13 14:55:58,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 492. [2022-12-13 14:55:58,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 381 states have (on average 1.5564304461942258) internal successors, (593), 389 states have internal predecessors, (593), 78 states have call successors, (78), 28 states have call predecessors, (78), 32 states have return successors, (89), 76 states have call predecessors, (89), 77 states have call successors, (89) [2022-12-13 14:55:58,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 760 transitions. [2022-12-13 14:55:58,526 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 760 transitions. Word has length 164 [2022-12-13 14:55:58,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:55:58,526 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 760 transitions. [2022-12-13 14:55:58,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 14:55:58,526 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 760 transitions. [2022-12-13 14:55:58,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-12-13 14:55:58,529 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:55:58,530 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:55:58,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 14:55:58,530 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:55:58,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:55:58,530 INFO L85 PathProgramCache]: Analyzing trace with hash -44191487, now seen corresponding path program 1 times [2022-12-13 14:55:58,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:55:58,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457813371] [2022-12-13 14:55:58,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:58,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:55:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:55:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:55:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:55:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:55:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:55:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:55:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 14:55:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 14:55:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 14:55:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 14:55:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 14:55:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 14:55:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 14:55:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 14:55:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 14:55:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 14:55:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 14:55:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 14:55:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 14:55:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-12-13 14:55:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:55:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,715 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-12-13 14:55:58,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:55:58,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457813371] [2022-12-13 14:55:58,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457813371] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:55:58,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135429911] [2022-12-13 14:55:58,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:58,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:55:58,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:55:58,717 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:55:58,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 14:55:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:58,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:55:58,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:55:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 14:55:58,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:55:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 14:55:59,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135429911] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:55:59,052 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:55:59,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-12-13 14:55:59,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392391757] [2022-12-13 14:55:59,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:55:59,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 14:55:59,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:55:59,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 14:55:59,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:55:59,054 INFO L87 Difference]: Start difference. First operand 492 states and 760 transitions. Second operand has 15 states, 14 states have (on average 12.428571428571429) internal successors, (174), 11 states have internal predecessors, (174), 4 states have call successors, (49), 6 states have call predecessors, (49), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2022-12-13 14:56:01,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:56:01,407 INFO L93 Difference]: Finished difference Result 1945 states and 3256 transitions. [2022-12-13 14:56:01,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 14:56:01,408 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 12.428571428571429) internal successors, (174), 11 states have internal predecessors, (174), 4 states have call successors, (49), 6 states have call predecessors, (49), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) Word has length 184 [2022-12-13 14:56:01,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:56:01,413 INFO L225 Difference]: With dead ends: 1945 [2022-12-13 14:56:01,413 INFO L226 Difference]: Without dead ends: 1484 [2022-12-13 14:56:01,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-12-13 14:56:01,415 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 3820 mSDsluCounter, 3775 mSDsCounter, 0 mSdLazyCounter, 5284 mSolverCounterSat, 1422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3822 SdHoareTripleChecker+Valid, 4257 SdHoareTripleChecker+Invalid, 6706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1422 IncrementalHoareTripleChecker+Valid, 5284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:56:01,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3822 Valid, 4257 Invalid, 6706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1422 Valid, 5284 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 14:56:01,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-12-13 14:56:01,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 910. [2022-12-13 14:56:01,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 720 states have (on average 1.6097222222222223) internal successors, (1159), 728 states have internal predecessors, (1159), 157 states have call successors, (157), 28 states have call predecessors, (157), 32 states have return successors, (178), 155 states have call predecessors, (178), 156 states have call successors, (178) [2022-12-13 14:56:01,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1494 transitions. [2022-12-13 14:56:01,486 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1494 transitions. Word has length 184 [2022-12-13 14:56:01,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:56:01,486 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1494 transitions. [2022-12-13 14:56:01,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 12.428571428571429) internal successors, (174), 11 states have internal predecessors, (174), 4 states have call successors, (49), 6 states have call predecessors, (49), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2022-12-13 14:56:01,487 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1494 transitions. [2022-12-13 14:56:01,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-12-13 14:56:01,489 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:56:01,489 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:01,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 14:56:01,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 14:56:01,691 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:56:01,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:01,691 INFO L85 PathProgramCache]: Analyzing trace with hash 227184269, now seen corresponding path program 1 times [2022-12-13 14:56:01,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:01,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721896026] [2022-12-13 14:56:01,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:01,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:56:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:56:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:56:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:56:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:56:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:56:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 14:56:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 14:56:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 14:56:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 14:56:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 14:56:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 14:56:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 14:56:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 14:56:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 14:56:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 14:56:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 14:56:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:01,817 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 14:56:01,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:01,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721896026] [2022-12-13 14:56:01,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721896026] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:01,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:01,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:56:01,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111830015] [2022-12-13 14:56:01,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:01,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:56:01,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:01,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:56:01,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:56:01,818 INFO L87 Difference]: Start difference. First operand 910 states and 1494 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:56:03,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:56:03,151 INFO L93 Difference]: Finished difference Result 2271 states and 3824 transitions. [2022-12-13 14:56:03,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:56:03,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2022-12-13 14:56:03,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:56:03,155 INFO L225 Difference]: With dead ends: 2271 [2022-12-13 14:56:03,161 INFO L226 Difference]: Without dead ends: 1439 [2022-12-13 14:56:03,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:56:03,163 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1650 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 2183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 649 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:56:03,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 1008 Invalid, 2183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [649 Valid, 1534 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 14:56:03,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2022-12-13 14:56:03,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1300. [2022-12-13 14:56:03,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 1031 states have (on average 1.6285160038797284) internal successors, (1679), 1039 states have internal predecessors, (1679), 236 states have call successors, (236), 28 states have call predecessors, (236), 32 states have return successors, (267), 234 states have call predecessors, (267), 235 states have call successors, (267) [2022-12-13 14:56:03,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 2182 transitions. [2022-12-13 14:56:03,247 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 2182 transitions. Word has length 168 [2022-12-13 14:56:03,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:56:03,247 INFO L495 AbstractCegarLoop]: Abstraction has 1300 states and 2182 transitions. [2022-12-13 14:56:03,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:56:03,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 2182 transitions. [2022-12-13 14:56:03,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-13 14:56:03,252 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:56:03,252 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:03,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 14:56:03,252 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:56:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:03,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1148016986, now seen corresponding path program 1 times [2022-12-13 14:56:03,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:03,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099981835] [2022-12-13 14:56:03,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:03,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:56:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:56:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:56:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:56:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:56:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:56:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 14:56:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 14:56:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 14:56:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 14:56:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 14:56:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 14:56:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 14:56:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 14:56:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 14:56:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 14:56:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 14:56:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:03,342 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 14:56:03,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:03,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099981835] [2022-12-13 14:56:03,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099981835] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:03,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:03,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:56:03,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609938685] [2022-12-13 14:56:03,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:03,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:56:03,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:03,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:56:03,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:56:03,344 INFO L87 Difference]: Start difference. First operand 1300 states and 2182 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:56:04,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:56:04,674 INFO L93 Difference]: Finished difference Result 3245 states and 5533 transitions. [2022-12-13 14:56:04,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:56:04,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2022-12-13 14:56:04,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:56:04,681 INFO L225 Difference]: With dead ends: 3245 [2022-12-13 14:56:04,681 INFO L226 Difference]: Without dead ends: 2076 [2022-12-13 14:56:04,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:56:04,683 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1568 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 2198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:56:04,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 998 Invalid, 2198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 14:56:04,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2022-12-13 14:56:04,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 1937. [2022-12-13 14:56:04,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1937 states, 1549 states have (on average 1.6378308586184636) internal successors, (2537), 1557 states have internal predecessors, (2537), 355 states have call successors, (355), 28 states have call predecessors, (355), 32 states have return successors, (386), 353 states have call predecessors, (386), 354 states have call successors, (386) [2022-12-13 14:56:04,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 3278 transitions. [2022-12-13 14:56:04,850 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 3278 transitions. Word has length 169 [2022-12-13 14:56:04,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:56:04,850 INFO L495 AbstractCegarLoop]: Abstraction has 1937 states and 3278 transitions. [2022-12-13 14:56:04,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:56:04,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 3278 transitions. [2022-12-13 14:56:04,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 14:56:04,856 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:56:04,856 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:04,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 14:56:04,856 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:56:04,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:04,856 INFO L85 PathProgramCache]: Analyzing trace with hash 411873508, now seen corresponding path program 1 times [2022-12-13 14:56:04,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:04,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274829571] [2022-12-13 14:56:04,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:04,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:56:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:56:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:56:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:56:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:56:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:56:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 14:56:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 14:56:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 14:56:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 14:56:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 14:56:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 14:56:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 14:56:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 14:56:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 14:56:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 14:56:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 14:56:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 14:56:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-12-13 14:56:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 14:56:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 14:56:04,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:04,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274829571] [2022-12-13 14:56:04,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274829571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:04,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:04,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:56:04,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193424834] [2022-12-13 14:56:04,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:04,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:56:04,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:04,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:56:04,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:56:04,951 INFO L87 Difference]: Start difference. First operand 1937 states and 3278 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 14:56:06,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:56:06,322 INFO L93 Difference]: Finished difference Result 4725 states and 8144 transitions. [2022-12-13 14:56:06,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:56:06,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 189 [2022-12-13 14:56:06,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:56:06,336 INFO L225 Difference]: With dead ends: 4725 [2022-12-13 14:56:06,336 INFO L226 Difference]: Without dead ends: 3054 [2022-12-13 14:56:06,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:56:06,340 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1549 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 2213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:56:06,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 994 Invalid, 2213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 14:56:06,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2022-12-13 14:56:06,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 2915. [2022-12-13 14:56:06,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2365 states have (on average 1.6452431289640592) internal successors, (3891), 2373 states have internal predecessors, (3891), 517 states have call successors, (517), 28 states have call predecessors, (517), 32 states have return successors, (564), 515 states have call predecessors, (564), 516 states have call successors, (564) [2022-12-13 14:56:06,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4972 transitions. [2022-12-13 14:56:06,542 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4972 transitions. Word has length 189 [2022-12-13 14:56:06,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:56:06,543 INFO L495 AbstractCegarLoop]: Abstraction has 2915 states and 4972 transitions. [2022-12-13 14:56:06,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 14:56:06,543 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4972 transitions. [2022-12-13 14:56:06,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 14:56:06,552 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:56:06,553 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:06,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 14:56:06,553 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:56:06,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:06,553 INFO L85 PathProgramCache]: Analyzing trace with hash 68010373, now seen corresponding path program 1 times [2022-12-13 14:56:06,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:06,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270549591] [2022-12-13 14:56:06,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:06,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:56:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:56:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:56:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:56:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:56:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:56:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 14:56:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 14:56:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 14:56:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 14:56:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 14:56:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 14:56:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 14:56:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 14:56:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 14:56:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 14:56:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 14:56:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,637 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 14:56:06,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:06,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270549591] [2022-12-13 14:56:06,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270549591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:06,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:06,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:56:06,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173732163] [2022-12-13 14:56:06,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:06,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:56:06,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:06,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:56:06,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:56:06,638 INFO L87 Difference]: Start difference. First operand 2915 states and 4972 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:56:08,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:56:08,237 INFO L93 Difference]: Finished difference Result 7064 states and 12279 transitions. [2022-12-13 14:56:08,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:56:08,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2022-12-13 14:56:08,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:56:08,250 INFO L225 Difference]: With dead ends: 7064 [2022-12-13 14:56:08,250 INFO L226 Difference]: Without dead ends: 4634 [2022-12-13 14:56:08,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:56:08,255 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1577 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:56:08,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1596 Valid, 994 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 14:56:08,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4634 states. [2022-12-13 14:56:08,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4634 to 4495. [2022-12-13 14:56:08,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4495 states, 3700 states have (on average 1.6505405405405404) internal successors, (6107), 3708 states have internal predecessors, (6107), 762 states have call successors, (762), 28 states have call predecessors, (762), 32 states have return successors, (835), 760 states have call predecessors, (835), 761 states have call successors, (835) [2022-12-13 14:56:08,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4495 states to 4495 states and 7704 transitions. [2022-12-13 14:56:08,583 INFO L78 Accepts]: Start accepts. Automaton has 4495 states and 7704 transitions. Word has length 171 [2022-12-13 14:56:08,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:56:08,583 INFO L495 AbstractCegarLoop]: Abstraction has 4495 states and 7704 transitions. [2022-12-13 14:56:08,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:56:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 4495 states and 7704 transitions. [2022-12-13 14:56:08,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-12-13 14:56:08,594 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:56:08,595 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:08,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 14:56:08,595 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:56:08,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:08,595 INFO L85 PathProgramCache]: Analyzing trace with hash 105673536, now seen corresponding path program 1 times [2022-12-13 14:56:08,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:08,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989438174] [2022-12-13 14:56:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:08,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:56:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:56:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:56:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:56:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:56:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:56:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 14:56:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 14:56:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 14:56:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 14:56:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 14:56:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 14:56:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 14:56:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 14:56:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 14:56:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 14:56:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 14:56:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 14:56:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 14:56:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-12-13 14:56:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 14:56:08,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:08,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989438174] [2022-12-13 14:56:08,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989438174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:08,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:08,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:56:08,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647738261] [2022-12-13 14:56:08,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:08,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:56:08,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:08,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:56:08,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:56:08,712 INFO L87 Difference]: Start difference. First operand 4495 states and 7704 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 14:56:10,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:56:10,322 INFO L93 Difference]: Finished difference Result 11235 states and 19608 transitions. [2022-12-13 14:56:10,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:56:10,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 191 [2022-12-13 14:56:10,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:56:10,343 INFO L225 Difference]: With dead ends: 11235 [2022-12-13 14:56:10,343 INFO L226 Difference]: Without dead ends: 7477 [2022-12-13 14:56:10,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:56:10,350 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1576 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:56:10,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 1021 Invalid, 2225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 14:56:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7477 states. [2022-12-13 14:56:10,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7477 to 7338. [2022-12-13 14:56:10,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7338 states, 6050 states have (on average 1.6472727272727272) internal successors, (9966), 6058 states have internal predecessors, (9966), 1255 states have call successors, (1255), 28 states have call predecessors, (1255), 32 states have return successors, (1372), 1253 states have call predecessors, (1372), 1254 states have call successors, (1372) [2022-12-13 14:56:10,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7338 states to 7338 states and 12593 transitions. [2022-12-13 14:56:10,878 INFO L78 Accepts]: Start accepts. Automaton has 7338 states and 12593 transitions. Word has length 191 [2022-12-13 14:56:10,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:56:10,879 INFO L495 AbstractCegarLoop]: Abstraction has 7338 states and 12593 transitions. [2022-12-13 14:56:10,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 14:56:10,879 INFO L276 IsEmpty]: Start isEmpty. Operand 7338 states and 12593 transitions. [2022-12-13 14:56:10,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-12-13 14:56:10,896 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:56:10,896 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:10,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 14:56:10,896 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:56:10,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:10,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1930148255, now seen corresponding path program 1 times [2022-12-13 14:56:10,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:10,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385326253] [2022-12-13 14:56:10,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:10,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:56:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:56:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:56:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:56:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:56:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:56:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 14:56:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:56:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 14:56:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 14:56:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 14:56:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 14:56:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 14:56:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 14:56:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 14:56:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 14:56:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 14:56:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:10,978 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 14:56:10,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:10,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385326253] [2022-12-13 14:56:10,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385326253] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:10,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:10,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:56:10,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087995809] [2022-12-13 14:56:10,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:10,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:56:10,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:10,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:56:10,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:56:10,980 INFO L87 Difference]: Start difference. First operand 7338 states and 12593 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:56:12,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:56:12,997 INFO L93 Difference]: Finished difference Result 18655 states and 32572 transitions. [2022-12-13 14:56:12,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:56:12,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2022-12-13 14:56:12,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:56:13,027 INFO L225 Difference]: With dead ends: 18655 [2022-12-13 14:56:13,027 INFO L226 Difference]: Without dead ends: 12456 [2022-12-13 14:56:13,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:56:13,038 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1551 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 2231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:56:13,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 1025 Invalid, 2231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 14:56:13,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12456 states. [2022-12-13 14:56:13,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12456 to 12317. [2022-12-13 14:56:13,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12317 states, 10207 states have (on average 1.6475947878906632) internal successors, (16817), 10215 states have internal predecessors, (16817), 2077 states have call successors, (2077), 28 states have call predecessors, (2077), 32 states have return successors, (2272), 2075 states have call predecessors, (2272), 2076 states have call successors, (2272) [2022-12-13 14:56:13,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12317 states to 12317 states and 21166 transitions. [2022-12-13 14:56:13,938 INFO L78 Accepts]: Start accepts. Automaton has 12317 states and 21166 transitions. Word has length 173 [2022-12-13 14:56:13,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:56:13,938 INFO L495 AbstractCegarLoop]: Abstraction has 12317 states and 21166 transitions. [2022-12-13 14:56:13,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:56:13,938 INFO L276 IsEmpty]: Start isEmpty. Operand 12317 states and 21166 transitions. [2022-12-13 14:56:13,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-12-13 14:56:13,964 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:56:13,964 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:13,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 14:56:13,964 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:56:13,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:13,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1610306786, now seen corresponding path program 1 times [2022-12-13 14:56:13,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:13,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6849422] [2022-12-13 14:56:13,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:13,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:56:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:56:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:56:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:56:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:56:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:56:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 14:56:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 14:56:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 14:56:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 14:56:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 14:56:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 14:56:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 14:56:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 14:56:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 14:56:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 14:56:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 14:56:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-12-13 14:56:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-12-13 14:56:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-12-13 14:56:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:14,055 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 14:56:14,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:14,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6849422] [2022-12-13 14:56:14,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6849422] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:14,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:14,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:56:14,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441821764] [2022-12-13 14:56:14,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:14,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:56:14,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:14,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:56:14,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:56:14,057 INFO L87 Difference]: Start difference. First operand 12317 states and 21166 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 14:56:17,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:56:17,273 INFO L93 Difference]: Finished difference Result 29613 states and 51432 transitions. [2022-12-13 14:56:17,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:56:17,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 193 [2022-12-13 14:56:17,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:56:17,322 INFO L225 Difference]: With dead ends: 29613 [2022-12-13 14:56:17,322 INFO L226 Difference]: Without dead ends: 19409 [2022-12-13 14:56:17,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:56:17,340 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1547 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 2224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:56:17,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1565 Valid, 972 Invalid, 2224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 1602 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 14:56:17,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19409 states. [2022-12-13 14:56:18,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19409 to 19270. [2022-12-13 14:56:18,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19270 states, 15957 states have (on average 1.6222974243278812) internal successors, (25887), 15965 states have internal predecessors, (25887), 3280 states have call successors, (3280), 28 states have call predecessors, (3280), 32 states have return successors, (3619), 3278 states have call predecessors, (3619), 3279 states have call successors, (3619) [2022-12-13 14:56:18,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19270 states to 19270 states and 32786 transitions. [2022-12-13 14:56:18,845 INFO L78 Accepts]: Start accepts. Automaton has 19270 states and 32786 transitions. Word has length 193 [2022-12-13 14:56:18,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:56:18,845 INFO L495 AbstractCegarLoop]: Abstraction has 19270 states and 32786 transitions. [2022-12-13 14:56:18,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 14:56:18,846 INFO L276 IsEmpty]: Start isEmpty. Operand 19270 states and 32786 transitions. [2022-12-13 14:56:18,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-13 14:56:18,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:56:18,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:18,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 14:56:18,892 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:56:18,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:18,892 INFO L85 PathProgramCache]: Analyzing trace with hash -934332000, now seen corresponding path program 1 times [2022-12-13 14:56:18,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:18,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444625] [2022-12-13 14:56:18,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:18,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:56:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:56:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:56:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:56:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:56:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:56:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 14:56:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 14:56:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 14:56:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 14:56:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 14:56:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 14:56:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 14:56:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 14:56:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 14:56:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 14:56:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 14:56:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:18,985 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 14:56:18,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:18,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444625] [2022-12-13 14:56:18,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444625] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:18,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:18,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:56:18,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244447173] [2022-12-13 14:56:18,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:18,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:56:18,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:18,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:56:18,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:56:18,986 INFO L87 Difference]: Start difference. First operand 19270 states and 32786 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:56:22,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:56:22,664 INFO L93 Difference]: Finished difference Result 51045 states and 88350 transitions. [2022-12-13 14:56:22,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:56:22,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2022-12-13 14:56:22,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:56:22,745 INFO L225 Difference]: With dead ends: 51045 [2022-12-13 14:56:22,745 INFO L226 Difference]: Without dead ends: 34530 [2022-12-13 14:56:22,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:56:22,773 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1628 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1521 mSolverCounterSat, 649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 649 IncrementalHoareTripleChecker+Valid, 1521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:56:22,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 997 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [649 Valid, 1521 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 14:56:22,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34530 states. [2022-12-13 14:56:25,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34530 to 34391. [2022-12-13 14:56:25,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34391 states, 28628 states have (on average 1.6191490848120722) internal successors, (46353), 28636 states have internal predecessors, (46353), 5730 states have call successors, (5730), 28 states have call predecessors, (5730), 32 states have return successors, (6343), 5728 states have call predecessors, (6343), 5729 states have call successors, (6343) [2022-12-13 14:56:25,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34391 states to 34391 states and 58426 transitions. [2022-12-13 14:56:25,181 INFO L78 Accepts]: Start accepts. Automaton has 34391 states and 58426 transitions. Word has length 175 [2022-12-13 14:56:25,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:56:25,181 INFO L495 AbstractCegarLoop]: Abstraction has 34391 states and 58426 transitions. [2022-12-13 14:56:25,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:56:25,182 INFO L276 IsEmpty]: Start isEmpty. Operand 34391 states and 58426 transitions. [2022-12-13 14:56:25,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-12-13 14:56:25,233 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:56:25,233 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:25,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 14:56:25,234 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:56:25,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:25,234 INFO L85 PathProgramCache]: Analyzing trace with hash 379790823, now seen corresponding path program 1 times [2022-12-13 14:56:25,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:25,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110193505] [2022-12-13 14:56:25,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:25,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:56:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:56:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:56:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:56:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:56:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:56:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 14:56:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 14:56:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 14:56:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 14:56:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 14:56:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 14:56:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 14:56:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 14:56:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 14:56:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 14:56:25,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-12-13 14:56:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:25,321 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 14:56:25,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:25,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110193505] [2022-12-13 14:56:25,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110193505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:25,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:25,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:56:25,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696278168] [2022-12-13 14:56:25,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:25,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:56:25,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:25,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:56:25,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:56:25,323 INFO L87 Difference]: Start difference. First operand 34391 states and 58426 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:56:30,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:56:30,995 INFO L93 Difference]: Finished difference Result 93917 states and 161749 transitions. [2022-12-13 14:56:30,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:56:30,996 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2022-12-13 14:56:30,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:56:31,186 INFO L225 Difference]: With dead ends: 93917 [2022-12-13 14:56:31,186 INFO L226 Difference]: Without dead ends: 63197 [2022-12-13 14:56:31,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:56:31,252 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 1517 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 2240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:56:31,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 1003 Invalid, 2240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 14:56:31,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63197 states. [2022-12-13 14:56:35,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63197 to 63058. [2022-12-13 14:56:35,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63058 states, 52782 states have (on average 1.6149065969459286) internal successors, (85238), 52790 states have internal predecessors, (85238), 10243 states have call successors, (10243), 28 states have call predecessors, (10243), 32 states have return successors, (11388), 10241 states have call predecessors, (11388), 10242 states have call successors, (11388) [2022-12-13 14:56:36,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63058 states to 63058 states and 106869 transitions. [2022-12-13 14:56:36,063 INFO L78 Accepts]: Start accepts. Automaton has 63058 states and 106869 transitions. Word has length 176 [2022-12-13 14:56:36,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:56:36,064 INFO L495 AbstractCegarLoop]: Abstraction has 63058 states and 106869 transitions. [2022-12-13 14:56:36,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 14:56:36,064 INFO L276 IsEmpty]: Start isEmpty. Operand 63058 states and 106869 transitions. [2022-12-13 14:56:36,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-12-13 14:56:36,141 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:56:36,142 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:36,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 14:56:36,142 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:56:36,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:36,142 INFO L85 PathProgramCache]: Analyzing trace with hash -801018173, now seen corresponding path program 1 times [2022-12-13 14:56:36,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:36,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36471258] [2022-12-13 14:56:36,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:36,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:56:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:56:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:56:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:56:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:56:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:56:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 14:56:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 14:56:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 14:56:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 14:56:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 14:56:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 14:56:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 14:56:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 14:56:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 14:56:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 14:56:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 14:56:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 14:56:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-12-13 14:56:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-12-13 14:56:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:36,224 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 14:56:36,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:36,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36471258] [2022-12-13 14:56:36,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36471258] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:36,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:36,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:56:36,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750810186] [2022-12-13 14:56:36,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:36,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:56:36,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:56:36,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:56:36,226 INFO L87 Difference]: Start difference. First operand 63058 states and 106869 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 14:56:45,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:56:45,555 INFO L93 Difference]: Finished difference Result 118293 states and 204126 transitions. [2022-12-13 14:56:45,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:56:45,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 196 [2022-12-13 14:56:45,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:56:45,887 INFO L225 Difference]: With dead ends: 118293 [2022-12-13 14:56:45,888 INFO L226 Difference]: Without dead ends: 118070 [2022-12-13 14:56:45,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:56:45,926 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 1541 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 2235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:56:45,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 999 Invalid, 2235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 14:56:46,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118070 states. [2022-12-13 14:56:54,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118070 to 117931. [2022-12-13 14:56:54,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117931 states, 99287 states have (on average 1.6095359916202523) internal successors, (159806), 99295 states have internal predecessors, (159806), 18611 states have call successors, (18611), 28 states have call predecessors, (18611), 32 states have return successors, (20802), 18609 states have call predecessors, (20802), 18610 states have call successors, (20802) [2022-12-13 14:56:54,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117931 states to 117931 states and 199219 transitions. [2022-12-13 14:56:54,801 INFO L78 Accepts]: Start accepts. Automaton has 117931 states and 199219 transitions. Word has length 196 [2022-12-13 14:56:54,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:56:54,802 INFO L495 AbstractCegarLoop]: Abstraction has 117931 states and 199219 transitions. [2022-12-13 14:56:54,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 14:56:54,802 INFO L276 IsEmpty]: Start isEmpty. Operand 117931 states and 199219 transitions. [2022-12-13 14:56:54,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-12-13 14:56:54,902 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:56:54,902 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:54,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 14:56:54,903 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:56:54,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:54,903 INFO L85 PathProgramCache]: Analyzing trace with hash 58691515, now seen corresponding path program 1 times [2022-12-13 14:56:54,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:54,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333562230] [2022-12-13 14:56:54,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:54,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:56:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:56:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:56:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:56:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:56:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:56:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:56:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 14:56:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 14:56:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 14:56:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 14:56:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 14:56:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 14:56:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 14:56:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 14:56:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 14:56:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 14:56:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-12-13 14:56:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-12-13 14:56:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-12-13 14:56:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:56:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:55,071 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 14:56:55,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:55,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333562230] [2022-12-13 14:56:55,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333562230] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:55,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:55,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:56:55,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328839058] [2022-12-13 14:56:55,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:55,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:56:55,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:55,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:56:55,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:56:55,073 INFO L87 Difference]: Start difference. First operand 117931 states and 199219 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (24), 7 states have call predecessors, (24), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-13 14:57:11,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:57:11,737 INFO L93 Difference]: Finished difference Result 227101 states and 391514 transitions. [2022-12-13 14:57:11,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 14:57:11,737 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (24), 7 states have call predecessors, (24), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 197 [2022-12-13 14:57:11,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:57:12,413 INFO L225 Difference]: With dead ends: 227101 [2022-12-13 14:57:12,413 INFO L226 Difference]: Without dead ends: 226886 [2022-12-13 14:57:12,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2022-12-13 14:57:12,486 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 3425 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 3850 mSolverCounterSat, 1318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3444 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 5168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1318 IncrementalHoareTripleChecker+Valid, 3850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:57:12,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3444 Valid, 1727 Invalid, 5168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1318 Valid, 3850 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 14:57:12,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226886 states. [2022-12-13 14:57:30,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226886 to 226594. [2022-12-13 14:57:30,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226594 states, 190809 states have (on average 1.613037120890524) internal successors, (307782), 190765 states have internal predecessors, (307782), 35724 states have call successors, (35724), 55 states have call predecessors, (35724), 60 states have return successors, (39007), 35777 states have call predecessors, (39007), 35722 states have call successors, (39007) [2022-12-13 14:57:31,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226594 states to 226594 states and 382513 transitions. [2022-12-13 14:57:31,619 INFO L78 Accepts]: Start accepts. Automaton has 226594 states and 382513 transitions. Word has length 197 [2022-12-13 14:57:31,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:57:31,620 INFO L495 AbstractCegarLoop]: Abstraction has 226594 states and 382513 transitions. [2022-12-13 14:57:31,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (24), 7 states have call predecessors, (24), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-13 14:57:31,620 INFO L276 IsEmpty]: Start isEmpty. Operand 226594 states and 382513 transitions. [2022-12-13 14:57:31,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-12-13 14:57:31,774 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:57:31,774 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:57:31,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 14:57:31,774 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:57:31,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:57:31,775 INFO L85 PathProgramCache]: Analyzing trace with hash 118235260, now seen corresponding path program 1 times [2022-12-13 14:57:31,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:57:31,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642295394] [2022-12-13 14:57:31,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:57:31,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:57:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:31,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:57:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:31,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:57:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:31,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:57:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:31,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:57:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:31,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:57:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:31,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:57:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:31,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:57:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:31,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 14:57:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:31,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 14:57:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:31,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 14:57:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:32,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 14:57:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:32,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 14:57:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:32,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 14:57:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:32,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 14:57:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:32,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 14:57:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:32,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 14:57:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:32,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 14:57:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:32,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 14:57:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:32,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-12-13 14:57:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:32,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:57:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-12-13 14:57:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:32,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:57:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 14:57:32,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:57:32,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642295394] [2022-12-13 14:57:32,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642295394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:57:32,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:57:32,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-13 14:57:32,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531977930] [2022-12-13 14:57:32,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:57:32,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 14:57:32,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:57:32,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 14:57:32,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-12-13 14:57:32,021 INFO L87 Difference]: Start difference. First operand 226594 states and 382513 transitions. Second operand has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 8 states have internal predecessors, (119), 6 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 6 states have call successors, (21) [2022-12-13 14:57:49,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:57:49,608 INFO L93 Difference]: Finished difference Result 227366 states and 389958 transitions. [2022-12-13 14:57:49,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 14:57:49,608 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 8 states have internal predecessors, (119), 6 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 6 states have call successors, (21) Word has length 198 [2022-12-13 14:57:49,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:57:50,334 INFO L225 Difference]: With dead ends: 227366 [2022-12-13 14:57:50,334 INFO L226 Difference]: Without dead ends: 226910 [2022-12-13 14:57:50,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=245, Invalid=811, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 14:57:50,401 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 2307 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 4967 mSolverCounterSat, 1060 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2326 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 6027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1060 IncrementalHoareTripleChecker+Valid, 4967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:57:50,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2326 Valid, 2006 Invalid, 6027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1060 Valid, 4967 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 14:57:50,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226910 states. [2022-12-13 14:58:07,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226910 to 226639. [2022-12-13 14:58:07,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226639 states, 190839 states have (on average 1.6129983913141444) internal successors, (307823), 190798 states have internal predecessors, (307823), 35737 states have call successors, (35737), 57 states have call predecessors, (35737), 62 states have return successors, (39018), 35787 states have call predecessors, (39018), 35731 states have call successors, (39018) [2022-12-13 14:58:08,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226639 states to 226639 states and 382578 transitions. [2022-12-13 14:58:08,763 INFO L78 Accepts]: Start accepts. Automaton has 226639 states and 382578 transitions. Word has length 198 [2022-12-13 14:58:08,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:58:08,764 INFO L495 AbstractCegarLoop]: Abstraction has 226639 states and 382578 transitions. [2022-12-13 14:58:08,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 8 states have internal predecessors, (119), 6 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 6 states have call successors, (21) [2022-12-13 14:58:08,764 INFO L276 IsEmpty]: Start isEmpty. Operand 226639 states and 382578 transitions. [2022-12-13 14:58:08,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-12-13 14:58:08,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:58:08,955 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:58:08,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 14:58:08,955 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:58:08,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:08,956 INFO L85 PathProgramCache]: Analyzing trace with hash -331245016, now seen corresponding path program 1 times [2022-12-13 14:58:08,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:08,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896166176] [2022-12-13 14:58:08,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:08,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:58:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:58:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:58:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:58:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:58:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:58:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:58:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 14:58:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 14:58:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 14:58:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 14:58:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 14:58:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 14:58:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 14:58:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 14:58:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 14:58:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:58:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-12-13 14:58:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:58:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,323 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 14:58:09,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:58:09,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896166176] [2022-12-13 14:58:09,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896166176] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:58:09,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318317567] [2022-12-13 14:58:09,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:09,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:58:09,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:58:09,324 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:58:09,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 14:58:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:09,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 14:58:09,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:58:09,686 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 14:58:09,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:58:09,997 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:58:09,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318317567] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:58:09,997 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:58:09,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2022-12-13 14:58:09,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714412051] [2022-12-13 14:58:09,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:58:09,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-13 14:58:09,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:58:10,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-13 14:58:10,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=914, Unknown=0, NotChecked=0, Total=992 [2022-12-13 14:58:10,001 INFO L87 Difference]: Start difference. First operand 226639 states and 382578 transitions. Second operand has 32 states, 30 states have (on average 8.933333333333334) internal successors, (268), 24 states have internal predecessors, (268), 9 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (47), 11 states have call predecessors, (47), 9 states have call successors, (47) [2022-12-13 15:00:23,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:23,366 INFO L93 Difference]: Finished difference Result 1357029 states and 2391069 transitions. [2022-12-13 15:00:23,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-12-13 15:00:23,367 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 8.933333333333334) internal successors, (268), 24 states have internal predecessors, (268), 9 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (47), 11 states have call predecessors, (47), 9 states have call successors, (47) Word has length 178 [2022-12-13 15:00:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:29,526 INFO L225 Difference]: With dead ends: 1357029 [2022-12-13 15:00:29,526 INFO L226 Difference]: Without dead ends: 1356568 [2022-12-13 15:00:30,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11489 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=3987, Invalid=28955, Unknown=0, NotChecked=0, Total=32942 [2022-12-13 15:00:30,331 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 9093 mSDsluCounter, 15565 mSDsCounter, 0 mSdLazyCounter, 41568 mSolverCounterSat, 7493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9124 SdHoareTripleChecker+Valid, 16283 SdHoareTripleChecker+Invalid, 49061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7493 IncrementalHoareTripleChecker+Valid, 41568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:30,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9124 Valid, 16283 Invalid, 49061 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7493 Valid, 41568 Invalid, 0 Unknown, 0 Unchecked, 17.2s Time] [2022-12-13 15:00:31,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356568 states. [2022-12-13 15:02:07,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356568 to 904079. [2022-12-13 15:02:08,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904079 states, 761321 states have (on average 1.6131631729585811) internal successors, (1228135), 760895 states have internal predecessors, (1228135), 142388 states have call successors, (142388), 312 states have call predecessors, (142388), 369 states have return successors, (192779), 142903 states have call predecessors, (192779), 142352 states have call successors, (192779) [2022-12-13 15:02:12,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904079 states to 904079 states and 1563302 transitions. [2022-12-13 15:02:12,139 INFO L78 Accepts]: Start accepts. Automaton has 904079 states and 1563302 transitions. Word has length 178 [2022-12-13 15:02:12,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:02:12,140 INFO L495 AbstractCegarLoop]: Abstraction has 904079 states and 1563302 transitions. [2022-12-13 15:02:12,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 8.933333333333334) internal successors, (268), 24 states have internal predecessors, (268), 9 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (47), 11 states have call predecessors, (47), 9 states have call successors, (47) [2022-12-13 15:02:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 904079 states and 1563302 transitions. [2022-12-13 15:02:12,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-12-13 15:02:12,999 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:02:12,999 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:02:13,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 15:02:13,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-13 15:02:13,200 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:02:13,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:02:13,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1885701017, now seen corresponding path program 1 times [2022-12-13 15:02:13,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:02:13,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816996141] [2022-12-13 15:02:13,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:02:13,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:02:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:02:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:02:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:02:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:02:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:02:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:02:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:02:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:02:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:02:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:02:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 15:02:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 15:02:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 15:02:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 15:02:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 15:02:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 15:02:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:02:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-12-13 15:02:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:02:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 15:02:13,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:02:13,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816996141] [2022-12-13 15:02:13,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816996141] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:02:13,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253725456] [2022-12-13 15:02:13,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:02:13,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:02:13,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:02:13,440 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:02:13,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 15:02:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:13,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 15:02:13,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:02:13,896 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-13 15:02:13,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:02:13,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253725456] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:02:13,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:02:13,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 20 [2022-12-13 15:02:13,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007194074] [2022-12-13 15:02:13,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:02:13,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:02:13,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:02:13,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:02:13,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-12-13 15:02:13,898 INFO L87 Difference]: Start difference. First operand 904079 states and 1563302 transitions. Second operand has 9 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 15:03:32,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:03:32,866 INFO L93 Difference]: Finished difference Result 907341 states and 1568041 transitions. [2022-12-13 15:03:32,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:03:32,867 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 180 [2022-12-13 15:03:32,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:03:36,461 INFO L225 Difference]: With dead ends: 907341 [2022-12-13 15:03:36,461 INFO L226 Difference]: Without dead ends: 904103 [2022-12-13 15:03:36,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2022-12-13 15:03:36,768 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 643 mSDsluCounter, 3605 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 4211 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:03:36,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 4211 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:03:37,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904103 states. [2022-12-13 15:05:05,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904103 to 904103. [2022-12-13 15:05:06,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904103 states, 761333 states have (on average 1.6131535083859494) internal successors, (1228147), 760919 states have internal predecessors, (1228147), 142388 states have call successors, (142388), 312 states have call predecessors, (142388), 381 states have return successors, (192807), 142903 states have call predecessors, (192807), 142352 states have call successors, (192807) [2022-12-13 15:05:09,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904103 states to 904103 states and 1563342 transitions. [2022-12-13 15:05:09,652 INFO L78 Accepts]: Start accepts. Automaton has 904103 states and 1563342 transitions. Word has length 180 [2022-12-13 15:05:09,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:05:09,652 INFO L495 AbstractCegarLoop]: Abstraction has 904103 states and 1563342 transitions. [2022-12-13 15:05:09,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 15:05:09,653 INFO L276 IsEmpty]: Start isEmpty. Operand 904103 states and 1563342 transitions. [2022-12-13 15:05:10,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-12-13 15:05:10,612 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:05:10,613 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:05:10,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 15:05:10,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:05:10,813 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:05:10,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:05:10,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1952827660, now seen corresponding path program 1 times [2022-12-13 15:05:10,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:05:10,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775277674] [2022-12-13 15:05:10,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:05:10,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:05:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:10,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:05:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:10,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:05:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:10,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 15:05:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 15:05:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:10,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:05:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 15:05:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:10,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 15:05:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:10,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 15:05:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:10,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:05:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:10,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:05:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:10,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 15:05:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:11,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 15:05:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:11,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 15:05:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:11,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 15:05:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:11,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 15:05:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:11,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 15:05:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:11,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:05:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:11,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-12-13 15:05:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:11,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:05:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:11,016 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 15:05:11,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:05:11,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775277674] [2022-12-13 15:05:11,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775277674] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:05:11,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844542523] [2022-12-13 15:05:11,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:05:11,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:05:11,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:05:11,017 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:05:11,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1725a5-1251-47b3-bc5a-450ae61cb299/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 15:05:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:05:11,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:05:11,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:05:11,294 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 15:05:11,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:05:11,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844542523] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:05:11,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:05:11,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-12-13 15:05:11,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341210587] [2022-12-13 15:05:11,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:05:11,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:05:11,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:05:11,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:05:11,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:05:11,297 INFO L87 Difference]: Start difference. First operand 904103 states and 1563342 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)